This month’s regular Patch Tuesday has come and gone, but today Microsoft is rolling out another round of new cumulative update for Windows 10 1803 and earlier supported versions of Windows 10. There are no new features to report in this update, but it does include several quality improvements and overall system fixes. For Windows 10 1803 it will bump your build to 17134.254.

Windows 10 1803 Cumulative Update KB4346783

Here is a look at the improvements and fixes to expect in today’s cumulative update for Windows 10 1803:

Addresses an issue in Microsoft Foundation Class applications that may cause applications to flicker.

Addresses an issue where touch and mouse events were handled differently in Windows Presentation Foundation (WPF) applications that have a transparent overlay window.

Addresses a reliability issue in applications that have extensive window nesting.

Addresses an issue in the Universal CRT that sometimes causes the AMD64 FMOD to return an incorrect result when given very large inputs.

Addresses an issue in the Universal CRT that causes the _get_pgmptr() function to return an empty string.

Addresses an issue in the Universal CRT that causes isprint() to return TRUE for a tab when using the C locale.

Addresses an issue where Microsoft Edge or other UWP applications can’t perform client authentication when the private key is stored on a TPM 2.0 device.

Addresses an issue that causes computer certificate enrollment or renewal to fail with an “Access denied” error after installing the April 2018 update. This issue occurs when the registry process has a lower process ID (PID) than all other processes except SYSTEM.

Addresses an issue that, in some cases, failed to clear decrypted data from memory after a CAPI decryption operation was completed.

Addresses an issue that prevented the Device Guard PackageInspector.exe application from including all the files needed for an application to run correctly once the Code Integrity policy was completed.

Addresses an issue where not all network printers are connected after a user signs in. The HKEY_USERS\User\Printers\Connections key shows the correct network printers for the affected user; however, the missing list for network printers from this registry key isn’t populated in any app, including Microsoft Notepad, or in Devices and Printers. Printers may disappear or stop functioning.

Addresses an issue that prevents printing on a 64-bit OS when 32-bit applications impersonate other users (typically by calling LogonUser). This issue occurs after installing monthly updates starting with KB4034681, released in August 2017. To resolve the issue for the affected applications, install this update, and then do one of the following:

Use the following registry setting, and then restart the 32-bit application:HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Print Setting: Splwow64Compat

Type: DWORD

Value1: 1

Addresses an issue that causes the Wi-Fi EAP-TTLS (CHAP) authentication to fail if a user saves credential information before authentication.

Addresses an issue that causes devices that have 802.1x Extensible Authentication Protocol (EAP) enabled to randomly stop working with the stop code ”0xD1 DRIVER_IRQL_NOT_LESS_OR_EQUAL”. The issue occurs when the kernel memory pool becomes corrupted. Crashes will generally occur in nwifi.sys.

Addresses an issue that may remove a Dynamic Host Configuration Protocol (DHCP) option from a reservation after changing the DHCP scope settings.

Extends the Key Management Service (KMS) to support the upcoming Windows 10 client Enterprise LTSC and Windows Server editions. For more information, see KB4347075.

You should get the update within the next couple of days automatically. Or, if you want to stay on top of things you can head to Settings > Update & Security and manually check for the update. You can also manually download the KB4346783 standalone installer. After the update, hit the Windows key and type:winver and hit Enter to see your build has been bumped to 17134.254.

If you are running an earlier version of Windows 10, note that there are also updates for previous versions including KB4343893 for Windows 10 Fall Creators Update (1709) or KB4343889 for Windows 10 Creators Update (1703).